I kept a tobi P boy I got from an experiment with a brave boy and one of my colour mares. I now have a Tobi WC boy who goes back to him, so sometimes it DOES work out if you keep experimenting. Especially since bravery is crack science and nothing is set in stone
maybe test him for a month? Though he has a bit too many As in his other ratings for my taste. I have a lot of frame in my braves though, so I might be biased. Champagne on the other hand is always nice to have
No, don't fire them, but I would switch the dressage, xcountry & jumping riders to AD. consolidate the level 1 horses under one rider. The level 2 horses as well.